new file mode 100644
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serdev/serdev-ngsm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic serdev-ngsm TS 27.010 driver
+
+maintainers:
+ - Tony Lindgren <tony@atomide.com>
+
+properties:
+ compatible:
+ enum:
+ - etsi,3gpp-ts27010-adaption1
+ - motorola,mapphone-mdm6600-serial
+
+ ttymask:
+ $ref: /schemas/types.yaml#/definitions/uint64
+ description: Mask of the TS 27.010 channel TTY interfaces to start (64 bit)
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: motorola,mapphone-mdm6600-serial
+ then:
+ properties:
+ phys:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: USB PHY needed for shared GPIO PM wake-up pins
+ maxItems: 1
+
+ phy-names:
+ description: Name of the USB PHY
+ const: usb
+
+ required:
+ - phys
+ - phy-names
+
+required:
+ - compatible
+ - ttymask
+ - "#address-cells"
+ - "#size-cells"
+
+examples:
+ - |
+ modem {
+ compatible = "motorola,mapphone-mdm6600-serial";
+ ttymask = <0 0x00001fee>;
+ phys = <&fsusb1_phy>;
+ phy-names = "usb";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
@@ -323,6 +323,8 @@ patternProperties:
description: Espressif Systems Co. Ltd.
"^est,.*":
description: ESTeem Wireless Modems
+ "^etsi,.*":
+ description: ETSI
"^ettus,.*":
description: NI Ettus Research
"^eukrea,.*":
Add a binding document for a generic serdev-ngsm driver that can be used to bring up TS 27.010 line discipline with Linux n_gsm support on a serial port. As the Motorola Mapphone modems require some custom handling, they are handled with a separate compatible. Let's also add vendor string for ETSI as we're using a ETSI 3GPP TS 27.010 standard. Signed-off-by: Tony Lindgren <tony@atomide.com> --- .../bindings/serdev/serdev-ngsm.yaml | 64 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + 2 files changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/serdev/serdev-ngsm.yaml